Bosch Dishwasher Internal drain hose (from sump) 00645149, Replaces 645149

Genuine Bosch dishwasher drain hose installed internally from the sump. Bosch states that customer-facing external drain-hose applications should use part 00668108 instead.

Is This the Right Part?

✅ Cross Reference Information

Common Symptoms

• Visible water leakage beneath or inside the dishwasher from a cracked, split, or poorly seated hose connection.
• Incomplete or slow draining when the hose is kinked, obstructed, or restricted.
• Standing water or drain-related error indications when drainage through the hose is impaired.

Check Before Replacing

• Disconnect electrical power before inspecting the hose or its connections.
• Inspect accessible hose routing for sharp bends, kinks, flattening, cracking, or evidence of rubbing.
• Check the hose connection areas for moisture or dried water residue after a drain operation, without assuming the hose is the confirmed cause.
• If safe access is available, check for a visible obstruction or restriction in the hose and confirm that the drain pump, filter, and downstream drain connection are not the actual source of the symptom.
• After service, run a short rinse or drain operation and observe both hose connections for leaks before fully reinstalling the dishwasher.

Pro Tip

Part Details

Key Features

• Genuine Bosch dishwasher replacement part.
• Internal drain hose specifically identified as running from the sump.
• Bosch distinguishes this part from the customer-facing external drain hose application.
• Previous Bosch number 645149 is archived for this part.

Installation Notes

• Disconnect electrical power and shut off the water supply before accessing the internal hose.
• Internal access may require moving or removing the dishwasher according to the appliance's model-specific service procedure.
• Before disconnecting the old hose, document or note its original routing and connection orientation.
• Transfer or reuse only the applicable original connection hardware when appropriate; do not add unverified fasteners, sealants, or adhesives.
• Route the replacement hose exactly as required for the appliance and verify that it is not kinked, sharply bent, or rubbing against surrounding components.
• After reconnection, restore utilities and check the hose connections for leaks during a drain operation before returning the dishwasher to its final position.

Verified Compatible Models

S36KMK12UC, S36KMK12UC-05, S36KMK15UC, S36KMK15UC-05, S36KMK16UC, S36KMK16UC-05, S46KMK12UC, S46KMK12UC-05, S46KMK15UC, S46KMK15UC-05, S46KMK16UC, S46KMK16UC-05, SHE3AR52UC, SHE3AR52UC/06, SHE3AR52UC/07

Fitment reminder: Match the complete appliance model number, including suffix or revision where applicable, before ordering.